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Specifications
Secondary Winding:
1
Isolation Voltage(Vrms):
2.5kV
Primary Winding(s):
1
Secondary Side Voltage:
120V
Output Current:
20mA
Primary Side Voltage:
115V
Mfr. Part #:
241-3-120
Package:
Screw Terminals
Key Attributes
Model Number:
241-3-120
Product Description
Product Overview
The Signal 241 Series Two-4-One Power Transformers are chassis-mount transformers designed with a split bobbin construction for superior isolation and low capacitive coupling. These transformers are suitable for a wide range of applications, offering power ratings from 2.4 VA to 100 VA. They are UL recognized and CSA certified, ensuring compliance with industry standards. Custom versions are available upon request.
Product Attributes
- Brand: Signal Transformer (Bel Fuse)
- Series: 241 Series Two-4-One
- Construction: Split Bobbin
- Certifications: UL recognized to UL 506 / UL 5085-1 (File # E63829), CSA certified to C22.2 #66.1 (File # 221070)
- Insulation Class: Class B (130 C)
- Compliance: RoHS Compliant
- Origin: USA (implied by address)
Technical Specifications
| Feature | Specification |
|---|---|
| Power Rating | 2.4 VA to 100 VA |
| Dielectric Strength | 2500 Vrms Hipot |
| Primary Options | Single or dual primaries (115 V or 115/230 V - 50/60 Hz) |
| Secondary | Single center tapped secondary |
| Terminals | Solder lug / quick connect type |
| Agency Certifications | UL 506 / UL 5085-1, CSA C22.2 #66.1 |
Part Number Selection & Ratings
| Part Number | Secondary RMS Rating | Part Number | Secondary RMS Rating | ||
|---|---|---|---|---|---|
| Single 115 V | Dual 115 / 230 V | Single 115 V | Dual 115 / 230 V | ||
| 241-3-10 | Not Available | 10.0 VCT @ 0.25 A | 241-3-28 | Not Available | 28 VCT @ 0.085 A |
| 241-4-10 | DP-241-4-10 | 10.0 VCT @ 0.60 A | 241-4-28 | DP-241-4-28 | 28 VCT @ 0.20 A |
| 241-5-10 | DP-241-5-10 | 10.0 VCT @ 1.2 A | 241-5-28 | DP-241-5-28 | 28 VCT @ 0.42 A |
| 241-6-10 | DP-241-6-10 | 10.0 VCT @ 3.0 A | 241-6-28 | DP-241-6-28 | 28 VCT @ 1.1 A |
| 241-7-10 | DP-241-7-10 | 10.0 VCT @ 5.0 A | 241-7-28 | DP-241-7-28 | 28 VCT @ 2.0 A |
| 241-8-10 | DP-241-8-10 | 10.0 VCT @ 10 A | 241-8-28 | DP-241-8-28 | 28 VCT @ 3.6 A |
| 241-3-12 | Not Available | 12.6 VCT @ 0.20 A | 241-3-36 | Not Available | 36 VCT @ 0.065 A |
| 241-4-12 | DP-241-4-12 | 12.6 VCT @ 0.50 A | 241-4-36 | DP-241-4-36 | 36 VCT @ 0.17 A |
| 241-5-12 | DP-241-5-12 | 12.6 VCT @ 1.0 A | 241-5-36 | DP-241-5-36 | 36 VCT @ 0.35 A |
| 241-6-12 | DP-241-6-12 | 12.6 VCT @ 2.5 A | 241-6-36 | DP-241-6-36 | 36 VCT @ 0.85 A |
| 241-7-12 | DP-241-7-12 | 12.6 VCT @ 4.0 A | 241-7-36 | DP-241-7-36 | 36 VCT @ 1.5 A |
| 241-8-12 | DP-241-8-12 | 12.6 VCT @ 8.0 A | 241-8-36 | DP-241-8-36 | 36 VCT @ 2.8 A |
| 241-3-16 | Not Available | 16.0 VCT @ 0.15 A | 241-3-48 | Not Available | 48 VCT @ 0.05 A |
| 241-4-16 | DP-241-4-16 | 16.0 VCT @ 0.40 A | 241-4-48 | DP-241-4-48 | 48 VCT @ 0.125 A |
| 241-5-16 | DP-241-5-16 | 16.0 VCT @ 0.80 A | 241-5-48 | DP-241-5-48 | 48 VCT @ 0.25 A |
| 241-6-16 | DP-241-6-16 | 16.0 VCT @ 2.0 A | 241-6-48 | DP-241-6-48 | 48 VCT @ 0.63 A |
| 241-7-16 | DP-241-7-16 | 16.0 VCT @ 3.5 A | 241-7-48 | DP-241-7-48 | 48 VCT @ 1.2 A |
| 241-8-16 | DP-241-8-16 | 16.0 VCT @ 6.25 A | 241-8-48 | DP-241-8-48 | 48 VCT @ 2.0 A |
| 241-3-20 | Not Available | 20.0 VCT @ 0.12 A | 241-3-56 | Not Available | 56 VCT @ 0.045 A |
| 241-4-20 | DP-241-4-20 | 20.0 VCT @ 0.30 A | 241-4-56 | DP-241-4-56 | 56 VCT @ 0.11 A |
| 241-5-20 | DP-241-5-20 | 20.0 VCT @ 0.60 A | 241-5-56 | DP-241-5-56 | 56 VCT @ 0.22 A |
| 241-6-20 | DP-241-6-20 | 20.0 VCT @ 1.5 A | 241-6-56 | DP-241-6-56 | 56 VCT @ 0.54 A |
| 241-7-20 | DP-241-7-20 | 20.0 VCT @ 2.8 A | 241-7-56 | DP-241-7-56 | 56 VCT @ 1.00 A |
| 241-8-20 | DP-241-8-20 | 20.0 VCT @ 5.0 A | 241-8-56 | DP-241-8-56 | 56 VCT @ 1.8 A |
| 241-3-24 | Not Available | 24.0 VCT @ 0.10 A | 241-3-120 | Not Available | 120 VCT @ 0.02 A |
| 241-4-24 | DP-241-4-24 | 24.0 VCT @ 0.25 A | 241-4-120 | DP-241-4-120 | 120 VCT @ 0.05 A |
| 241-5-24 | DP-241-5-24 | 24.0 VCT @ 0.50 A | 241-5-120 | DP-241-5-120 | 120 VCT @ 0.10 A |
| 241-6-24 | DP-241-6-24 | 24.0 VCT @ 1.25 A | 241-6-120 | DP-241-6-120 | 120 VCT @ 0.25 A |
| 241-7-24 | DP-241-7-24 | 24.0 VCT @ 2.4 A | 241-7-120 | DP-241-7-120 | 120 VCT @ 0.50 A |
| 241-8-24 | DP-241-8-24 | 24.0 VCT @ 4.0 A | 241-8-120 | DP-241-8-120 | 120 VCT @ 0.85 A |
Mechanical Specifications
| Size (VA) | Dimensions (Inches) | Dimensions (mm) | Weight (lbs) | Weight (kg) |
|---|---|---|---|---|
| 3 (2.4) | L: 2.07, W: 1.17, H: 1.23, A: 1.62, B: 0.59, ML: 1.75 | L: 52.6, W: 29.6, H: 31.2, A: 41.3, B: 15.0, ML: 44.5 | 0.25 | 0.11 |
| 4 (6) | L: 2.37, W: 1.31, H: 1.43, A: 1.71, B: 0.72, ML: 2.00 | L: 60.3, W: 33.3, H: 36.2, A: 43.4, B: 18.3, ML: 50.8 | 0.44 | 0.20 |
| 5 (12) | L: 2.81, W: 1.43, H: 1.69, A: 1.97, B: 0.89, ML: 2.37 | L: 71.4, W: 36.3, H: 42.8, A: 49.9, B: 22.6, ML: 60.3 | 0.7 | 0.32 |
| 6 (30) | L: 3.25, W: 1.74, H: 1.96, A: 2.35, B: 1.14, ML: 2.81 | L: 82.6, W: 44.3, H: 49.8, A: 59.7, B: 28.9, ML: 71.4 | 1.1 | 0.50 |
| 7 (56) | L: 3.68, W: 1.94, H: 2.28, A: 2.70, B: 1.14, ML: 3.12 | L: 93.5, W: 49.2, H: 57.8, A: 68.4, B: 28.9, ML: 79.4 | 1.7 | 0.77 |
| 8 (100) | L: 4.03, W: 2.30, H: 2.58, A: 3.08, B: 1.43, ML: 3.56 | L: 102.4, W: 58.5, H: 65.5, A: 78.2, B: 36.2, ML: 90.4 | 2.75 | 1.25 |
Note: ML (typ) indicates typical mounting hole length. Clearance for #8 screw.
Lead Wire Configuration:
- 115V 50/60 Hz CT Single Primary: S1 indicates like polarity
- 115/230V 50/60 Hz Dual Primary: F1, F2, S1, S2
- 115V 50/60 Hz CT Single Primary: (Duplicate entry from above, likely referring to a specific wiring scheme)
Note: Agency certified 241 Series transformers with standard length and color lead wires are readily available. See website for 241-L product series.
2411272146_Bel-Fuse-241-3-120_C17511348.pdf
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